Imagine the scene.
You are approaching some lights and there some cars sat at the lights. You know it will be about 1 minute before the lights change. There is an ASL at the front which you could filter into (safely). There are x cars between you and the ASL. What is the minimum number of cars there would have to be before you filter to the ASL?
You are approaching some lights and there some cars sat at the lights. You know it will be about 1 minute before the lights change. There is an ASL at the front which you could filter into (safely). There are x cars between you and the ASL. What is the minimum number of cars there would have to be before you filter to the ASL?